2 problems

Let $\mathscr{D}^\mathrm{Ext}(\mathfrak{h},W)$ and $\mathrm{TiltFM}^\mathrm{Ext}(\mathfrak{h}^*,W)$ be the Ext-enhanced monoidal categories associated with a Kac–Moody group, with…

Let $\Lambda_n$ be the indexing set of weights, let $W$ be the relevant Weyl group, and let $\mathcal{A}^w$ denote the orbit or alcove associated with $w\in W$. For…